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In the title compound, C15H10BrN3O2S, the dihedral angles between the 1,3,4-oxa-diazole ring and the 3-pyridinyl and bromo-benzene rings are 12.17 (15) and 18.74 (15)°, respectively. In the crystal, the mol-ecules are linked into [100] chains by way of C-H⋯O, C-H⋯N, C-H⋯S hydrogen bonds. The Hirshfeld surface analysis indicates that the most important(More)
Tyramine derivatives 3-27 were synthesized by using conventional and environmental friendly ultrasonic techniques. These derivatives were then evaluated for the first time for their α-glucosidase (Sources: Saccharomyces cerevisiae and mammalian rat-intestinal acetone powder) inhibitory activity by using in vitro mechanism-based biochemical assays. Compounds(More)
The mol-ecule of the commercially available title compound, C9H9NO2S, has crystallographically imposed mirror symmetry, the mirror plane passing through the isocyanide group and the para-C atoms, the methyl C atom and the S atom of the methyl 4-tolyl sulfone moiety. In the crystal, C-H⋯O hydrogen-bond inter-actions link the mol-ecules into chains running(More)
In the title benzyl-idenemalono-nitrile derivative, C17H12N2O, the dihedral angles between the central benzene ring and the Y-shaped C=C(CN)2 group (r.m.s. deviation = 0.006 Å) and the terminal benzene ring are 12.72 (8) and 37.60 (11)°, respectively. The Car-O-Csp (3)-Car torsion angle is -174.52 (13)° and the major twist between the aromatic rings occurs(More)
In the pyrazole mol-ecule of the title solvate, C15H13BrN4O2·C2H6OS, the dihedral angle between the benzene ring and the mean plane of the di-hydro-pyrano[2,3-c]pyrazole ring system [r.m.s deviation = 0.031 (2) Å] is 86.71 (14)°. In the crystal, the pyrazole mol-ecules are linked by N-H⋯N hydrogen bonds, forming a layer parallel to (10-1). The pyrazole and(More)
Owing to the biological importance of cyclic sulfonamides (sultams), herein we report a new, facile and cost-effective method for the synthesis of sultams that makes use of a reaction between dansyl amide and easily accessible benzaldehydes under mildly acidic conditions. All compounds were obtained in good yields (69-96%). Consequently a series of cyclic(More)
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